Steven Paes


This research project proposes to provide an aid to the photo-interpreter so that he can determine more easily objects of importance Kodak Ektachrome Infrared Aero Film, Type 8443, is utilized by this project as the medium through which this aid will be carried out. Films, such as this one, are visibility and near infrared sensitive color films. The wavelength region of the film's sensitivity is 0. 5 to 0. 9 nm. This film, therefore, is very useful, since it uses its near infrared capability to discriminate between objects that have nearly the same visual appearance but different near infrared characteristics. The infrared sensitive layer produces a cyan positive image which means that the image will appear to vary in different amounts of red in the final image. The method employed is all theoretical in nature, since this is a new type of study. Determining the image transmittance under a known set of conditions is the major portion of the theory. The remainder of the theory is devoted to C I. E. and Munsell Color coordinate determinations. Image formation theory in a color material is on the surface an easy task, but actually is a difficult process. Under the circumstances, determination of the image is accurately done. Theory involving the two types of coordinate determination is straight-forward, and was accomplished easily. Three minor problems were encountered, and they were: image formation, too limited conversion table between coordinate systems, and a small selection of available Munsell color chips. Despite these problems, data was collected and assembled. The results are plausible, but a practical study or test must be conducted to really see if the theory set forth in this project is indeed workable.

Library of Congress Subject Headings

Color sensitometry (Photography); Photographic interpretation

Publication Date


Document Type


Department, Program, or Center

School of Photographic Arts and Sciences (CIAS)


Schumann, Gerhard


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TR515 .P33


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